N be a number,the 2,3 and 5 base notations u get last digit is 1.and two out of three the leading digit is 1. N is equal to
A)31 b)63 c)74 d)91

• number shuld be in format of 2k+1,3k+1,5k+1
  so take lcm of 2 3 5 we get 30k+1
  so it may be 31 or 91
  but in case of 31 leading digit of all 3 case is one
  31 base2 = 11111
  31 base3 = 1011
  31 base5 = 111
  
  so ans is 91
  
  
• 9 years agoHelpfull: Yes(15) No(3)
• priya got it correct.
  number shuld be in format of 2k+1,3k+1,5k+1
  so take lcm of 2 3 5 we get 30k+1
  so it may be 31 or 91
  but in case of 31 leading digit of all 3 case is one
  31 base2 = 11111
  31 base3 = 1011
  31 base5 = 111
  while,
  91 base2 = 1011011
  91 base3 = 10101
  91 base5 = 331
  
  
  so ans is 91
• 9 years agoHelpfull: Yes(9) No(0)
• 31 base2 = 11111
  31 base3 = 1011
  31 base5 = 111
  Answer is 31.
  
  
• 9 years agoHelpfull: Yes(7) No(4)
• @priya kumari please tell me how do u convert 31 base 2 to a value? it wll be help ful ,,,
  
• 9 years agoHelpfull: Yes(3) No(0)
• @priya kumari please tell me how do u convert 31 base 2 to a value?
• 8 years agoHelpfull: Yes(1) No(0)
• for people who dont know how to calculate the base
  heres an example take 99
  and we have to calculate its base 5 keep dividing 99 by 5 and write the quotient along with remainder
  see below u will understand
  
  5|99
  5|19|4
  5|3|4
  5|3|3
  
  answer is 344
• 8 years agoHelpfull: Yes(1) No(2)
• conversion
  31 base 5 - (5^2) + (5^1)+ (5^0)
  1 1 1
  =25 + 5 + 1
  =31
  
  
• 8 years agoHelpfull: Yes(1) No(0)
• from the question the answer is 74
  
• 9 years agoHelpfull: Yes(0) No(3)
• Priya question says that two out of three leading digit is 1 so answer will be 31 not 91
• 8 years agoHelpfull: Yes(0) No(3)